2121102111000 has 128 divisors (see below), whose sum is σ = 6683362695360. Its totient is φ = 560026880000.

The previous prime is 2121102110951. The next prime is 2121102111013. The reversal of 2121102111000 is 1112011212.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3197169 + ... + 3803168.

Almost surely, 2^{2121102111000} is an apocalyptic number.

2121102111000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121102111000 is an abundant number, since it is smaller than the sum of its proper divisors (4562260584360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121102111000 is a wasteful number, since it uses less digits than its factorization.

2121102111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7000462 (or 7000448 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2121102111000 its reverse (1112011212), we get a palindrome (2122214122212).

The spelling of 2121102111000 in words is "two trillion, one hundred twenty-one billion, one hundred two million, one hundred eleven thousand".